Hanna Instruments-8720 Panel mounted ORP analogue controller with self-diagnostic test, range: +/-1999 mV
Hanna Instruments-8720 ORP Analogue Controller
This instrument allows the selection of a set point for oxidising or reducing dosage.
When used in conjunction with the Hanna Instruments-8710 pH controller, the ODCD (ORP dosing consent device) function (featured by the Hanna Instruments-8710) will ensure that the ORP dosage will start only when the pH level is correct.
These instruments have been designed for easy and fast installation and are provided with membrane keypads on the front panel, large display, and auto-diagnostic functions.
Each model accepts either a direct input from an ORP electrode or from a transmitter through 4-20 mA input. The instrument also provides ±5V power output and input terminals for amplified electrodes.
Moreover, you can choose the output configuration for connecting a recorder or a PLC, between 0–20 or 4-20 mA.
A removable, transparent splash-proof cover protects the front panel.
Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.